Ozone pollution alert for Central Colorado Thursday

Published Jun 25, 2025

On Wednesday at 4:10 p.m. the National Weather Service reported an air quality alert in effect until Thursday at 4 p.m. for Central Colorado.

The NWS adds to expect, “Ozone Action Day Alert.”

The full list of affected locations includes:

• Denver County

• Douglas County

• Jefferson County

• Arapahoe County

• Weld County

• Adams County

• Boulder County

• Larimer County

• Broomfield County

Air quality alerts: Recommendations from the NWS

When an air quality alert pops up on the radar, deciphering its implications is crucial. These alerts, issued by the NWS, come with straightforward yet essential guidance to ensure your safety:

Prioritize indoor stay:

If you can, take refuge indoors, especially if you have respiratory concerns, underlying health conditions, or belong to the senior or child demographics.

Minimize outdoor ventures:

When you can’t avoid going outdoors, keep outdoor activities to the bare essentials. Reducing your time outdoors is the key.

Scale back pollution-inducing practices:

Be mindful of activities that increase pollution, like driving cars, operating gas-powered lawnmowers, or using motorized vehicles. Limit their usage during air quality alerts.

Banish open burning:

Avoid burning debris or any other materials during air quality alerts. This contributes to worsened air quality.

Stay informed:

Keep yourself well-informed by tuning in to NOAA Weather Radio or your preferred weather news outlet. Staying in the loop empowers you to make informed decisions regarding outdoor engagements during air quality alerts.

Respiratory health caution:

If you have respiratory problems or underlying health conditions, exercise extra caution. These conditions can increase your vulnerability to adverse effects from poor air quality.

Following the recommendations from the NWS helps bolster your safety during air quality alerts, minimizing your exposure to potentially harmful pollutants. Stay vigilant, stay protected, and make your health the top priority.

Source: The National Weather Service